As we mentioned earlier, Lance Armstrong was in a bicycle accident Monday while taking part in a five-day race in Spain.

The world champ had to be taken to a hospital in Palencia, where they thought he was suffering from an injured collarbone.

Unfortunately, we've just learned the injury was worst than expected.

Turns out Lance BROKE his right collarbone!

Armstrong was spotted leaving the hospital today with his arm in a sling (above). He is heading back to the US for doctors to determine whether or not he'll need surgery.

He did say, "I'm miserable. I just need to relax a couple of days and then make a plan."

And there's worse news for Lance. According to Jacinto Vidarte, the spokesman for the Vuelta Ciclista Castilla y Leon race, it looks like Lance could be done with bicycling for the next three to four weeks.

Couldn't have happened to a bigger douche. Maybe since he's injured - he'll spend some time with the three kids he abandoned to go screw Sheryl Crowe -this jerk is the ultimate asshole - womanizing loser - he's OLD so hopefully he won't heal quickly - Lance - get a life cause YOU SUCK

aww that sucks! I broke my clavicle in a bike accident back in sep. it was horrible you cant move for a month, it hurts to breath and for the first week you cant lay down you have to sleep sitting up. It took me a little over 3 months to heel, I'm sure he'll be back sooner then that.

In July, father John McCain was diagnosed with stage 4 glioblastoma, an aggressive form of brain cancer, which also claimed Beau's life.

When the 33-year-old began crying, the politician went over and consoled her, adding:

"There is hope... And if anybody can make it, your dad [can]."

Biden is also optimistic about "breakthroughs that are occurring now," regarding potential treatment options and cures.

"There's a lot of things happening. Any of you who have somebody who is diagnosed with gliobastoma, which is about as bad as it gets, there's breakthroughs that are occurring now... And it can happen tomorrow."